ERGONOMIC keyboards such as "Microsoft Natural Keyboard" can help prevent injuries from using the keyboard for long periods of time. Posture related injuries result from long use of laptops and computers. The ergonomic keyboards are easily adjustable by adjusting height in a particular angle.
10.00-6.11=3.89
1 9 1
10.00- __turns to__
09.00- __turns to__
09.00- __turns to__
09.90-
06.11 ___________ 06.11____________
06.11 ____________ 06.11
03.89 02.89 03.79 03.89